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The nth term |
2008-03-16 |
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From ryan:
need help figuring nth term for 1, 2, 5, 14, 41...... could you please help
Answered by Penny Nom. |
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Determine the capacity of Farmer John's silo |
2008-03-16 |
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From paula:
Farmer John stores grain in a large silo located at the edge of his farm. The cylinder-shaped silo has one flat, rectangular face that rests against the side of his barn. The height of the silo is 30 feet and the face resting against the barn is 10 feet wide. If the barn is approximately 5 feet from the center of the silo, determine the capacity of Farmer John’s silo in cubic feet of grain.
Answered by Penny Nom. |
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The area of an equilateral triangle |
2008-03-16 |
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From michael:
my daughter has been given a task and I'm stuck too.
if an area of an equilateral triangle = 85cm squared
there are no other dimensions provided.
how do I calculate the length of each side ? please
Answered by Penny Nom. |
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The surface area of a cube and a cylinder |
2008-03-16 |
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From sunday:
I'm doing a unit assessment, and there is something I don't understand. Now in my textbook, it says that surface area for a cube is different from a cylinder. Surface area for a cylinder has two numbers, but surface area for a cube has 3 or more numbers. And plus, I can't figure out the volume for a cube because it only shows volume for a cylinder. So how do I get this right?
Answered by Harley Weston. |
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A train and a boat |
2008-03-15 |
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From Sabrina:
A railroad bridge is 20m above, and at right angles to, a river. A person in a train travelling at 60 km/h passes over the centre of the bridge at the same instant that a person in a motorboat travelling at 20km/h passes under the centre of the bridge. How fast are the two people separating 10s later?
Answered by Harley Weston. |
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Mathematics in cooking |
2008-03-15 |
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From Emily:
What forms of Mathematics are used in Cooking?
Answered by Harley Weston. |
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Induction |
2008-03-14 |
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From Marcelo:
Prove by the principle of the math induction that:
1.3.5.7....(2n-1) = (2n)!/(2^n)n!
Answered by Harley Weston. |
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The limit of (sin4x)/(tan9x) as x approaches zero |
2008-03-14 |
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From stev:
as x->0. How do you find the limit of f(x)=(sin4x)/(tan9X)
Answered by Harley Weston. |
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The product of two numbers is 1,000,000,000 |
2008-03-14 |
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From Henry:
What two numbers that don't in zero when multiplied equals 1,000,000,000 and same with 1,000,000,000,000,000,000.
Answered by Penny Nom. |
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The area of a triangle |
2008-03-14 |
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From Tara:
Area of triangle is 4,018 square yards. Its base is 82 yards. What is its height? Thanks
Answered by Stephen La Rocque. |
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How tall is the tower? |
2008-03-13 |
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From chris:
you are standing 120 feet from the base of a tower. the angle of the elevation to the top of the tower is 15 degrees. how tall is the actual tower?
Answered by Penny Nom. |
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1, 1, 2, 3, 5, 8, 13, ___ ___ ___ |
2008-03-13 |
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From Karen:
What is the rule for the following pattern, and what would come next?
1, 1, 2, 3, 5, 8, 13, ___ ___ ___
Answered by Penny Nom. |
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Inverses of functions |
2008-03-13 |
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From jess:
if g(x)=2x+3 find g^-1(g(4))
how do I sovle I cant's figure out what to do with the 4
Answered by Stephen La Rocque. |
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Two consecutive odd positive integers |
2008-03-12 |
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From Sarah:
The sum of the squares of two consecutive odd positive integers is 74. What are th integers?
Answered by Penny Nom. |
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The length of a side of a square |
2008-03-12 |
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From laura:
if i had a square of 2.3 square meters what would its radius be?(in centimeters please)
Answered by Penny Nom. |
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